Tube well strainer.



No. 828,714. l PATENTE!) AUG. 14,1906.

'man WELL sasa. unicum: Hass nu. s1, nos.

wir una UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Aug. 14, 1906.

pp :cation filed March 27, 1906. Serial No, 303.290.

To alt whom, it may concern:

Be it known that I, WILLIAM F. 000K, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky,havc invented' certain new Vand useful Improvements in Tube Well-Strainers, of which the following is a specification.

This invention is desi ned to provide a strainer for wells of the tu ular type whether bored or driven, the purpose being to supply a screen which, while strong and durable,`

will provide in the aggregate a large amount cf strainer-openings compared with the entire surface or area of the device.

The invention consists of a strainer formed of a Wire coiled upon itself into cylindrical form, the several coils boing connected by means of strips which also serve to stiften and brace the device.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accom an ing drawings.

Whi e t e invention may be adapted 'to dii'erent forms and conditions by changes-in' the structure and minor details without departing from the spirit or essential features thereof, still the preferred embodiment is shown in the accompanying drawings, in Which- Figure l is a side view of a strainer embodying the invention. Fig. 2 is a horizontal section of the strainer on the line :1; :n of Fig. i.

The strainer is of cylindrical form and its body (portion is composed of a Wire coiled or wenn, upon itself in spiral form. The wire 1 may be ci any material, metal being referred, and of any cross-sectional out ine. The metal found to give the best results is either brass or copper, although zinc or other metal not liable to corr-ode by darn ness may be employed. The wire is coile so as to provide a minute space between adjacent coils, thereby excluding sand from finding its Way into the strainer and into the tubing comprising the well. The strainer may be of any length and is preferably of uniform diameter and is strengthened by vertical or longitudinal strips 2 and 3, arranged upon op osite sides of the body of the structure an secured thereto an to one another.

. v The strips 2 and 3 constitute stays as v ell as Btiffeners and ties, the latter function resulting from the binding together of the several coils or winds of the wire. The strips 2V and 3 are Vpreferably soldered to the coils coinprising the body of the strainer, and the strips 2 are convex upon their outer sides between their vertical and longitudinal edges and are formed at intervals with oV enings 4 to admit of flowing solder into ille joints formed between the strips 2 and 3 and the coils or winds of the wire, so as to bind all tcgether in a rm and substantial Way. The outer strips 2 ar'e bent outward between their longitudinal or vertical edges to form a space 5 between the outer side of the body of the strainer and the inner concaved side of said strips to receive the solder ilowed therein through the openings 4. The strips have a parallel relation and by reason of the attachnient of the coils thereto serve to maintain the same in proper relation. The solder llowcd between the coils acts as spacing ineens, besides serving to unite the strips to each other and to the coils.

The wire may be coiled about a mandrel in the formation of the body of the strainer or y 'may be bent in any manner, so as to form the structure and space the coils or winds a art the desired distance. After the body o the strainer has been formed the coils are united and the structure braced by application of the strips 2 and 3 thereto, said strips being provided in pairs and arranged upon the inner and the outer sides of the body and secured to each other and to the coils in any manner, preerabl by derving solder through the opemngs, e revision of the openings 4 prevents spree. ing of the solder beyond opposite edges of the strips, thereby maintaining a maximum-sized o ening 0r space between adjacent strips. be space between adaeent coils is minute or comparatively smal seas to exclude sand.

A strainer formed substantially as herein set forth is exceedingly strong, because composed wlioll of parte such Yas the wire 1 and strips 2 an 3, which are drawn and which are ossessed of extreme linear stren th, duc 'to t eir formation by the recess of cliawing.

Having thus described t e invention, what is claimed as new is 'L A tube well screen comprising a body formed of a Wire coiled upon itself and having the coils spaced apart, and strips applied to a side of the body and spaced spart and provided at intervals in their` length with open- IOC IIC

ings through which solder is flowed to unite the strips to the body of the screen and to join the coils thereof.

2. A tube well screen comprising a body formed of a wire coiled upon itself and having the coils s aced apart, and strips applied to a side of t e body and spaced apart and provided upon the side adjacent to the body aces and having openings at intervals in their length in communication with said spaces and through which openings solder is adapted to be flowed into the spaces and between the coils.

3. The herein-described tube well screen comprising a wire coiled upon itself into cylindrical form and having the coils spaced apart, and pairs of stri s embracing oppo site sides of the body, t e outer strips being bent outward between their longitudinal or vertical edges to forni an outer convex surface and an inner concave surface, said outer strips having openings at intervals in their length hrough which solder is flowed to unite the pairs of strips to each other and to the several coils of the body.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM F. COOK.

. Witnesses:

V. B. HILLYARD, J. D. YOAKLEY. 

